Display device

ABSTRACT

A display device is provided. The display device includes: a flexible display panel; a bottom cover disposed at a rear of the display panel and coupled to the display panel; a driving module disposed at a rear of the bottom cover and including a moving block that makes a reciprocal movement; a wing bracket fixed to the rear of the bottom cover at a position adjacent to the driving module; and a wing elongated with a first end fixed to the moving block and a second end coupled to the bottom cover, the wing pivotally connected to the wing bracket at a position between the first end and the second end.

CROSS-REFERENCE TO RELATED APPLICATIONS

Pursuant to 35 U.S.C. § 119(a), this application claims the benefit ofearlier filing date and right of priority to Korean Patent ApplicationNos. 10-2022-0067926, filed on Jun. 3, 2022, and 10-2022-0108351, filedon Aug. 29, 2022, the contents of which are all hereby incorporated byreference herein in their entireties.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The following description relates to a display device, and moreparticularly to a display device capable of changing a curvature of adisplay panel.

2. Description of the Related Art

With the development of the information society, there have been growingdemands for various types of display devices, and in order to meet thesedemands, various display devices, such as a liquid crystal display(LCD), an electroluminescent display (ELD), a vacuum fluorescent display(VFD), an organic light emitting diode (OLED) panel, etc., have beenstudied and used recently.

Among these display devices, the OLED panel may display images bydepositing a self light-emitting organic layer on a substrate on whichtransparent electrodes are formed. The OLED panel is thin and flexible,and active research has been conducted on the structural characteristicsof a display device having the OLED panel.

SUMMARY OF THE INVENTION

It is an objective of the present disclosure to solve the above andother problems.

It is another objective of the present disclosure to provide a structurein which a curvature of a display panel may be freely changed.

It is yet another objective of the present disclosure to provide amechanism in which a curvature of a display panel may be freely changed.

It is yet another objective of the present disclosure to provide astructure in which a display panel may be curved with a constantcurvature.

In accordance with an aspect of the present disclosure, the above andother objectives can be accomplished by providing a display deviceincluding: a flexible display panel; a flexible rear cover disposed at arear of the display panel and coupled to the display panel; a drivingmodule disposed at a rear of the rear cover and including a moving blockthat makes a reciprocal movement; a wing bracket fixed to the rear ofthe rear cover at a position adjacent to the driving module; and a wingelongated with a first end fixed to the moving block and a second endcoupled to the rear cover, the wing pivotally connected to the wingbracket at a position between the first end and the second end.

Effects of the Invention

According to at least one of the embodiments of the present disclosure,a structure may be provided in which a curvature of a display panel maybe freely changed.

According to at least one of the embodiments of the present disclosure,a mechanism may be provided in which a curvature of a display panel maybe freely changed.

According to at least one of the embodiments of the present disclosure,a structure may be provided in which a display panel may be curved witha constant curvature.

Further scope of applicability of the present disclosure will becomeapparent from the detailed description given hereinafter. However, itshould be understood that the detailed description and specificexamples, while indicating preferred embodiments of the presentdisclosure, are given by illustration only, since various changes andmodifications within the spirit and scope of the present disclosure willbecome apparent to those skilled in the art from this detaileddescription.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1 to 52 are diagrams illustrating examples of a display deviceaccording to embodiments of the present disclosure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Hereinafter, the present disclosure will be described in detail withreference to the accompanying drawings, in which the same referencenumerals are used throughout the drawings to designate the same orsimilar components, and a redundant description thereof will be omitted.

The terms “module” and “unit” for elements used in the followingdescription are given simply in view of the ease of the description, anddo not have a distinguishing meaning or role. It will be noted that adetailed description of known arts will be omitted if it is determinedthat the detailed description of the known arts can obscure theembodiments of the invention. Further, the accompanying drawings areused to help easily understand various technical features and it shouldbe understood that the embodiments presented herein are not limited bythe accompanying drawings. As such, the present disclosure should beconstrued to extend to any alterations, equivalents and substitutes inaddition to those which are particularly set out in the accompanyingdrawings.

It will be understood that, although the terms first, second, etc., maybe used herein to describe various elements, these elements should notbe limited by these terms. These terms are only used to distinguish oneelement from another.

It will be understood that when an element is referred to as being“connected” or “coupled” to another element, it can be directlyconnected or coupled to the other element or intervening elements may bepresent. In contrast, when an element is referred to as being “directlyconnected” or “directly coupled” to another element, there are nointervening elements present.

As used herein, the singular forms are intended to include the pluralforms as well, unless the context clearly indicates otherwise.

It should be understood that the terms “comprise”, ‘include”, “have”,etc. when used in this specification, specify the presence of statedfeatures, integers, steps, operations, elements, components, orcombinations of them but do not preclude the presence or addition of oneor more other features, integers, steps, operations, elements,components, or combinations thereof.

Hereinafter, a display panel will be described by using an Organic LightEmitting Diode (OLED) as an example, but a display panel applicable tothe present disclosure is not limited to the OLED panel.

In addition, in the following description, the display device mayinclude a first long side LS1, a second long side LS2 opposite the firstlong side LS1, a first short side SS1 adjacent to one end of each of thefirst long side LS1 and the second long side LS2, and a second shortside SS2 opposite the first short side SS1.

Here, an area of the first short side SS1 may be referred to as a firstside area; an area of the second short side SS2 may be referred to as asecond side area opposite to the first side area; an area of the firstlong side LS1 may be referred to as a third side area adjacent to thefirst side area and the second side area and disposed between the firstside area and the second side area; and an area of the second long sideLS2 may be referred to as a fourth side area adjacent to the first sidearea and the second side area, disposed between the first side area andthe second side area, and opposite to the third side area.

For convenience of explanation, it is illustrated and described that thefirst and second long sides LS1 and LS2 are longer than the first andsecond short sides SS1 and SS2, but it is also possible that the lengthsof the first and second long sides LS1 and LS2 may be approximatelyequal to the lengths of the first and second short sides SS1 and SS2.

In the following description, a first direction DR1 may be a directionparallel to the long sides LS1 and LS2 of the display device, and asecond direction DR2 may be a direction parallel to the short sides SS1and SS2 of the display device. A third direction DR3 may be a directionperpendicular to the first direction DR1 and/or the second directionDR2.

The first direction DR1 and the second direction DR2 may be collectivelyreferred to as a horizontal direction. Further, the third direction DR3may be referred to as a vertical direction.

A side or a surface, on which the display device displays an image, maybe referred to as a front side or a front surface. When the displaydevice displays an image, a side or a surface, at which the image cannotbe observed, may be referred to as a rear side or a rear surface. Whenthe display device is viewed from the front side or the front surface,the first long side LS1 may be referred to as an upper side or an uppersurface, and the second long side LS2 may be referred to as a lower sideor a lower surface. Likewise, the first short side SS1 may be referredto as a left side or a left surface, and the second short side SS2 maybe referred to as a right side or a right surface.

The first long side LS1, the second long side LS2, the first short sideSS1, and the second short side SS2 may be referred to as edges of thedisplay device. Further, positions where the first long side LS1, thesecond long side LS2, the first short side SS1, and the second shortside SS2 meet each other may be referred to as corners. For example, aposition where the first long side LS1 and the first short side SS1 meeteach other may be referred to as a first corner C1; a position where thefirst long side LS1 and the second short side SS2 meet each other may bereferred to as a second corner C2; a position where the second shortside SS2 and the second long side LS2 meet each other may be referred toas a third corner C3; and a position where the second long side LS2 andthe first short side SS1 meet each other may be referred to as a fourthcorner C4.

Here, a direction from the first short side SS1 to the second short sideSS2 or a direction from the second short side SS2 to the first shortside SS1 may be referred to as a left-right direction LR. A directionfrom the first long side LS1 to the second long side LS2 or a directionfrom the second long side LS2 to the first long side LS1 may be referredto as an up-down direction UD.

Referring to FIG. 1 , a display panel 110 may be coupled to a plate 120.The plate 120 may be flexible. The plate 120 may be referred to as aflexible plate 120, a frame 120, or a module cover 120. The displaypanel 110 may be disposed on a front side or a front surface of theplate 120. The display panel 110 may be flexible. For example, thedisplay panel 110 may be an OLED panel.

The display panel 110 may be provided on a front surface of a displaydevice 100 and may display an image. The display panel 110 may dividethe image into a plurality of pixels and may output the image whilecontrolling color, brightness, and chroma of the respective pixels. Thedisplay panel 110 may generate light corresponding to red, green, orblue color in response to a control signal.

The display device 100 may have a variable curvature. The left and rightsides of the display device 100 may move forward. For example, when animage is viewed from the front side of the display device 100, thedisplay device 100 may be curved concavely. In this case, the plate 120may be curved with the same curvature as the display panel 110.Alternatively, the display panel 110 may be curved corresponding to thecurvature of the plate 120.

Referring to FIGS. 2 and 3 , the plate 120 may be coupled to the rear ofthe display panel 110. The plate 120 may support the display panel 110at the rear of the display panel 110. The plate 120 may have a shapecorresponding to the display panel 110.

A driving module 130 may be coupled to the rear of the plate 120. Afront bracket 130F, a rear bracket 130R, and wing brackets 131 and 132may be disposed at the rear of the plate 120. The front bracket 130F maybe coupled or fixed to a rear surface of the plate 120. The rear bracket130R may be disposed at the rear of the front bracket 130F, may bespaced apart from the front bracket 130F, and may face the front bracket130F.

The wing brackets 131 and 132 may include bracket frames 131 a and 132 aand wing holders 131 b and 132 b. The bracket frames 131 a and 132 a maybe in the shape of a rectangular box. The wing holders 131 b and 132 bmay be formed on one side of the bracket frames 131 a and 132 a. Thewing holders 131 b and 132 b may protrude from one surface of thebracket frames 131 a and 132 a. The wing holders 131 b and 132 b mayform a pair. The pair of wing holders 131 b and 132 b may be disposedopposite each other.

There may be a plurality of wing brackets 131 and 132. The plurality ofwing brackets 131 and 132 may include a first wing bracket 131 and asecond wing bracket 132. The first wing bracket 131 may be coupled orfixed to the front bracket 130F and/or the rear bracket 130R and may bedisposed opposite the second wing bracket 132 with respect to the frontbracket 130F. The second wing bracket 132 may also be coupled or fixedto the front bracket 130F and/or the rear bracket 130R.

Wings 141 and 142 may include blades 141 a and 142 a, necks 141 b and142 b, and levers 141 c and 142 c. For example, the wings 141 and 142may be made of metal. In another example, the wings 141 and 142 may bemade of an aluminum alloy. The blades 141 a and 142 a may be elongatedplates and may include ribs for providing rigidity. The levers 141 c and142 c and the necks 141 b and 142 b may be formed at one end of theblades 141 a and 142 a. The necks 141 b and 142 b, disposed between thelevers 141 c and 142 c and the blades 141 a and 142 a, may connect thelevers 141 c and 142 c and the blades 141 a and 142 a. A width of thenecks 141 b and 142 b may be smaller than a width of the levers 141 cand 142 c, and a width of the levers 141 c and 142 c may be smaller thana width of the blades 141 a and 142 a. Pivot shafts 141 p and 142 p maybe formed at the necks 141 b and 142 b. The pivot shafts 141 p and 142 pmay be inserted into the wing holders 131 b and 132 b. The wings 141 and142 may pivot about the pivot shafts 141 p and 142 p and the wingholders 131 b and 132 b.

The first wing 141 may be rotatably or pivotally coupled to the firstwing bracket 131, and the second wing 142 may be rotatably or pivotallycoupled to the second wing bracket 132. The first wing 141 may besymmetric to the second wing 142 with respect to a driving unit 130.

Sliding mounts 151 and 152 may be coupled or fixed to a rear side or arear surface of the plate 120. A first sliding mount 151 may be disposedadjacent to a left side of the plate 120, and a second sliding mount 152may be disposed adjacent to a right side of the plate 120. A distal endof the first wing 141 may be movably coupled to the first sliding mount151. A distal end of the second wing 142 may be movably coupled to thesecond sliding mount 152.

A flip frame 133 may be disposed between the lever 141 c of the firstwing 141 and the lever 142 c of the second wing 142 and may be coupledto the levers 141 c and 142 c. For example, the flip frame 133 may bemade of metal. The flip frame 133 may include a first frame 133 a and asecond frame 133 b. For example, the first frame 133 a may have aU-shape, and the second frame 133 b may have a U-shape. The first frame133 a may be pivotally connected to the second frame 133 b. A pivot pin133 c may pass through the first frame 133 a and the second frame 133 bto connect the first frame 133 a and the second frame 133 b. The firstframe 133 a may pivot with respect to the second frame 133 b, and thesecond frame 133 b may pivot with respect to the first frame 133 a. Thefirst frame 133 a may be fixed or coupled to the lever 141 c of thefirst wing 141, and the second frame 133 b may be fixed or coupled tothe lever 142 c of the second wing 142.

A moving block 134 may be disposed inside the flip frame 133. The movingblock 134 may be disposed between the first frame 133 a and the secondframe 133 b of the flip frame 133.

A lead screw 135 may be inserted into the moving block 134. The movingblock 134 may be moved on the lead screw 135 by rotation of the leadscrew 135. By rotation and reverse rotation of the lead screw 135, themoving block 134 may make a reciprocal movement along the lead screw135.

The lead screw 135 may be coupled to the driving gear 136 and may rotatetogether with the driving gear 136. The driving gear 136 may rotatewhile facing a rear surface of the plate 120 (see FIG. 2 ). The leadscrew 135 may be a rotating shaft of the driving gear 136. A bearing Bmay be coupled to one end and/or both ends of the lead screw 135. Thelead screw 135 may rotate with the one end being inserted into a frontbearing B and the other end being inserted into a rear bearing B. Forexample, the lead screw 135 may be press-fit into the front bearing Band the rear bearing B.

A motor 137 may be disposed under the moving block 134. The motor 137may provide torque. A gear box 138 may transmit the torque of the motor137 to the driving gear 136.

Referring to FIGS. 4 and 5 , a first gear 138 a may be fixed to arotating shaft 137 a of the motor 137 to rotate together with therotating shaft 137 a of the motor 137. For example, the first gear 138 amay be a worm. A second gear 138 b may be engaged with the first gear138 a. For example, the second gear 138 may be a worm gear.

The first gear 138 a and the second gear 138 b may be disposed in thegear box 138. A transmission gear 138 c may be disposed outside the gearbox 138. The transmission gear 138 c may be fixed to the rotating shaft137 a of the second gear 138 b and may rotate together with the secondgear 138 b. The transmission gear 138 c may be engaged with the drivinggear 136.

The lead screw 135 may be a rotating shaft of the driving gear 136. Thedriving gear 136 may be fixed to the lead screw 15. The driving gear 136may be coupled to the lead screw 135 by a pin.

Referring to FIG. 6 , the lead screw 135 may include a shaft body 135 aand a screw 135 b. The shaft body 135 a may be in the shape of anelongated cylinder, and the screw 135 b may be formed on an outercircumferential surface of the shaft body 135 a. The moving block 134may include a moving body 134 a and a sliding block 134 b. For example,the moving body 134 a may be made of metal, and the sliding block 134 bmay be made of a synthetic resin. The sliding block 134 b may bedisposed inside the moving body 134 a. The sliding block 134 b may bescrew-coupled to the lead screw 135.

The lead screw 135 may be inserted into the sliding block 134 b. Thesliding block 134 b may be moved on the lead screw 135 by the rotationof the lead screw 135. Clearance may be formed between an innercircumferential surface of the sliding block 134 b and the screw 135 bof the lead screw 135, thereby preventing the moving block 134 frombeing caught or locked while moving on the lead screw 135.

Referring to FIG. 7 , the moving body 134 a may include an outer part134 a 1 and an inner part 134 a 2. The outer part 134 a 1 may form anouter surface of the moving body 134 a. The inner part 134 a 2 may becoupled to the inside of the outer part 134 a 1. For example, the outerpart 134 a 1 may be a U-shaped metal plate, and the inner part 134 a 2may be a metal shell having an inner receiving space. The sliding block134 b may be coupled to the inside of the inner part 134 a 2.

A pivot pin 133 c may extend by protruding from the outer part 134 a 1of the moving body 134 a. The first frame 133 a and the second frame 133b of the flip frame 133 may include holes 133H1 and 133H2. The pivot pin133 c may be inserted into the hole 133H2 of the second frame 133 b andthe hole 133H1 of the first frame 133 a. A disc 133 d may be disposedbetween the first frame 133 a and the second frame 133 b, and the pivotpin 133 c may be inserted into a hole 133 dH of the disk 133 d. Forexample, the disk 133 d may be made of a material having high durabilityand low friction characteristics.

An intermediate member 139 may be disposed between the moving body 134a, the pivot pin 133 c, and the flip frame 133. The intermediate member139 may cover an upper surface of the moving body 134 a and an outersurface of the pivot pin 133 c. The intermediate member 139 may bereferred to as a low friction member 139 or a lubricating member 139. Inaddition, the intermediate member 139 may be referred to as a skinmember 139.

The intermediate member 139 may include a body part 139 a and a flangepart 139 b. The body part 139 a may have a cylindrical shape. The pivotpin 133 c may be inserted into the body part 139 a. The body part 139 amay make contact with the outer surface of the pivot pin 133 c, and theflange part 139 b may make contact with the upper surface of the movingbody 134 a. The intermediate member 139 may be made of a synthetic resinhaving low friction characteristics. The intermediate member 139 may bemade of a low friction material. For example, the intermediate member139 may be made of polyoxymethylene (POM, acetal homopolymer). The firstframe 133 a and the second frame 133 b of the flip frame 133 may moveabout the pivot pin 133 c while making contact with or rubbing againstthe intermediate member 139.

The intermediate member 139 may fill a gap between the hole 133H1 of thefirst frame 133 a of the flip frame 133 and the pivot pin 133 c. Theintermediate member 139 may fill a gap between the hole 133H2 of thesecond frame 133 b of the flip frame 133 and the pivot pin 133 c. Thesecond frame 133 b of the flip frame 133 may be placed on theintermediate member 139. Accordingly, the pivot pin 133 c may transmitforce to the flip frame 133 without causing noise or vibrations.

Referring to FIGS. 8 and 9 , when the lead screw 135 rotates, the movingblock 134 and the flip frame 133 may move on the lead screw 135. Theflip frame 133 may make a reciprocal movement in a longitudinaldirection of the lead screw 135. The movement of the flip frame 133allows the first wing 141 and/or the second wing 142 to pivot about thepivot shafts 141P and 142P.

A first distance D1 from the pivot pin 133 c to the pivot shafts 141Pand 142P may be smaller than a second distance D2 from the pivot shafts141P and 142P to the sliding mounts 151 and 152. For example, the firstdistance D1 may be one-fourth of the second distance D2. The levers 141c and 142 c of the wings 141 and 142 are fixed to the flip frame 133,and the flip frame 133 moves together with the pivot pin 133 c duringmovement of the pivot pin 133 c, such that a driving force of the movingblock 134 moving on the lead screw 135 may be transmitted efficiently tothe levers 141 c and 142 c of the wings 141 and 142 via the flip frame133.

In addition, as the levers 141 c and 142 c of the wings 141 and 142 arefixed to the flip frame 133 and move together with the flip frame 133,the first distance D1 increases such that less force is required todrive the wings 141 and 142, thereby increasing power transmissionefficiency of the driving unit 130 and reducing power consumption of themotor 137.

Referring to FIGS. 10 and 11 , an elastic member 101 may include a firstpart 101 a, a second part 101 b, and a third part 101 c. The elasticmember 101 may be referred to as a first elastic member 101 or a clip101. The first part 101 a may be a plate. The second part 101 b may bebent and extend from the first part 101 a. The third part 101 c may bebent and extend from the second part 101 b. The third part 101 c mayface the first part 101 a. A second angle formed between the second part101 b and the third part 101 c may be greater than a first angle formedbetween the first part 101 a and the second part 101 b. In the extendingdirection, the third part 101 c may be longer than the first part 101 a.The elastic member 101 may be a metal plate and may have elasticity. Forexample, the elastic member 101 may be a leaf spring.

A coupling hole 101H1 may be formed in the first part 101 a. There maybe a plurality of coupling holes 101H1. A support rib 101R may be formedon the third part 101 c. The support rib 101R may be elongated in thedirection in which the third part 101 c extends. There may be aplurality of support ribs 101R. The support ribs 101R may protrude froman outer surface of the third part 101 c. The plurality of support ribs101R may be parallel to each other.

The elastic member 101 may be inserted between the moving block 134 andthe levers 141 c and 142 c of the wings 141 and 142. The first part 101a of the elastic member 101 may be fixed to the levers 141 c and 142 cof the wings 141 and 142. For example, the first part 101 a of theelastic member 101 may be screw-coupled to the levers 141 c and 142 c ofthe wings 141 and 142. The third part 101 c of the elastic member 101may support the moving block 134. The third part 101 c of the elasticmember 101 may make contact with a side surface of the moving block 134.The third part 101 c of the elastic member 101 may make contact with theouter part 134 a 1 and/or the inner part 134 a 2 of the moving body 134a. The outer part 134 a 1 and/or the inner part 134 a 2 of the movingbody 134 a, making contact with the third part 101 c of the elasticmember 101, may be rounded. The support ribs 101R formed on the thirdpart 101 c of the elastic member 101 may make contact with the innerpart 134 a 2 of the moving block 134.

There may be a plurality of elastic members 101. Each of the pluralityof elastic members 101 may be inserted between the moving block 134 andthe lever 141 c of the first wing 141 and between the moving block 134and the lever 142 c of the second wing 142. In a mechanism in which theflip frame 133 flips or pivots about the pivot pin 133 c, clearance maybe formed between the pivot pin 133 c of the moving block 134 and theholes 133H1 and 133H2 (see FIG. 7 ) of the flip frame 133. The elasticmember 101 may push the moving block 134 in one direction. As theelastic member 101 pushes the moving block 134 in one direction, thepivot pin 133 c of the moving block 134 may be pressed against one sideof the holes 133H1 and 133H2 of the flip frame 133.

Accordingly, in the entire region in which the moving block 134 moves onthe lead screw 134, the moving block 134 may transmit force to the flipframe 133. In a mechanism in which the moving block 134 transmits forceto the flip frame 133, clearance between the components may cause thedisplay panel 110 to temporarily stop bending. According to theembodiment of the present disclosure, the display panel 110 may be bentcontinuously.

Referring to FIGS. 12 and 13 , an elastic member 102 may include a leverpart 120 a, support parts 102 d and 102 e, and coil parts 102 b and 102c. The elastic member 102 may be formed as a wire. The elastic member102 may be referred to as a second elastic member 102.

The lever part 102 a may be a wire bent in a U-shape. The coil parts 102b and 102 c may be connected to the lever part 102 a. There may be aplurality of coil parts 102 b and 102 c. A first coil part 102 b may beconnected to a first end of the lever part 102 a, and the second coilpart 102 c may be connected to a second end of the lever part 102 a.There may be a plurality of support parts 102 d and 102 e. A firstsupport part 102 d may form a distal end of the first coil part 102 b,and the second support part 102 e may form a distal end of the secondcoil part 102 c.

When the support parts 102 d and 102 e are fixed, the lever part 102 amay rotate or pivot about the coil parts 102 b and 102 c. The coil parts102 b and 102 c may provide elasticity to the lever part 102 a.

The elastic member 102 may be disposed on the wing bracket 132. Thesupport parts 102 d and 102 e of the elastic member 102 may be fixed tothe bracket frame 132 a of the wing bracket 132. The lever part 102 a ofthe elastic member 102 may be supported by the lever 142 c of the wing142.

The wing 142 may include a support groove 142 c 2 and a friction pad 142c 1. The support groove 142 c 2 may be formed at a positioncorresponding to a portion of a length of the lever part 102 a of theelastic member 102. The friction pad 142 c 1 may be formed on thesupport groove 142 c 2. The friction pad 142 c 1 may protrude from thesupport groove 142 c 2 and a surface of the friction pad 142 c 1 may besmoothly polished.

When the wings 141 and 142 are pivotally coupled to the wing brackets131 and 132, clearance may be formed between the pivot shafts 141 p and142 p of the wings 141 and 142 and the wing holders 131 b and 132 b ofthe wing brackets 131 and 132. In a mechanism in which the moving block134 transmits force to the flip frame 133 to allow the wings 141 and 142to bend the display panel 110, the clearance may cause the display panel110 to temporarily stop bending. The wings 141 and 142 may receive forcefrom the elastic member 102 in a forward direction of the display device100. Accordingly, the display panel 110 may be bent continuously. Inaddition, power consumption of the motor 137 required to bend thedisplay panel 110 may be reduced.

In addition, as the sliding block 134 b (see FIG. 6 ) is screw-coupledto the lead screw 135, clearance may be formed for the sliding block 134b to move on the lead screw 135. As the elastic member 102 pushes thewings 141 and 142 to press the sliding block 134 b in one direction ofthe lead screw 135, the display panel 110 may be bent continuously.Further, when the torque of the motor 137 and the lead screw 135 isreleased while the display panel 110 is in a flat shape, flatness of thedisplay panel 110 may be changed. In this embodiment, the display panel110 may remain flat and/or curved with a predetermined curvature.

Referring to FIGS. 14 and 15 along with FIG. 8 , when the wings 141 and142 are pivotally coupled to the wing brackets 131 and 132, clearancemay be formed between the pivot shafts 141 p and 142 p of the wings 141and 142 and the wing holders 131 b and 132 b of the wing brackets 131and 132. In a mechanism in which the moving block 134 transmits force tothe flip frame 133 to allow the wings 141 and 142 to bend the displaypanel 110, the clearance between the components may cause the displaypanel 110 to temporarily stop bending.

Elastic rings 103 and 104 may be disposed around an outer circumferenceof the lead screw 135. The lead screw 135 may be inserted into theelastic rings 103 and 104. The elastic rings 103 and 104 may be referredto as compression rings 103 and 104 or compression members 103 and 014.For example, the elastic rings 103 and 104 may be highly elastic rubber.A diameter of the elastic rings 103 and 104 may be greater than adiameter of the shaft body 135 a of the lead screw 135. For example, aninner diameter of the elastic rings 103 and 104 may be greater than anouter diameter of the shaft body 135 a of the lead screw 135. There maybe a plurality of elastic rings 103 and 104. The plurality of elasticrings 103 and 104 may include a first elastic ring 103 and a secondelastic ring 104. The first elastic ring 103 may be referred to as afront elastic ring 103, and the second elastic ring 104 may be referredto as a rear elastic ring 104.

The front elastic ring 103 may be disposed between the driving gear 136and the moving block 134. The front elastic ring 103 may make contactwith the driving gear 136.

As the moving block 134 moves on the lead screw 135, the front elasticring 103 may be brought into contact with or separated from the innerpart 134 a 2 of the moving block 134. While moving closer to the drivinggear 136, the moving block 134 may compress the front elastic ring 103.In addition, while moving away from the driving gear 136, the frontelastic ring 103 may push the moving block 134.

The rear elastic ring 104 may be disposed between the bearing B and themoving block 134. The rear elastic ring 104 may make contact with thebearing B. As the moving block 134 moves on the lead screw 135, the rearelastic ring 104 may be brought into contact with or separated from theouter part 134 a 1 of the moving block 134. While moving closer to thebearing B, the moving block 134 may compress the rear elastic ring 104.In addition, while moving away from the bearing B, the rear elastic ring104 may push the moving block 134.

Accordingly, the display panel 110 may be bent continuously. Inaddition, a large amount of power may be consumed during initial drivingto bend or flatten the display panel 110. During the initial driving ofthe moving block 134, the elastic rings 103 and 104 may push the movingblock 134, thereby reducing power consumed by the motor 137 for bendingthe display panel 110.

In addition, as the sliding block 134 b (see FIG. 6 ) is screw-coupledto the lead screw 135, clearance may be formed for the sliding block 134b to move on the lead screw 135. As the moving block 134 compresses theelastic rings 103 and 104 or as the elastic rings 103 and 104 push themoving block 134, the sliding block 134 b may come into close contactwith the lead screw 135 in a longitudinal direction of the lead screw135, such that the display panel 110 may be bent continuously.

Further, when the torque of the motor 137 and the lead screw 135 isreleased while the display panel 110 is in a flat shape, flatness of thedisplay panel 110 may be changed. In this embodiment, the display panel110 may remain flat and/or curved with a predetermined curvature.

Referring to FIG. 16 , the flip frame 133 may have the holes 133H1 and133H2. The holes 133H1 and 133H2 may be formed adjacent to a distal endof the first frame 133 a and/or the second frame 133 b of the flip frame133. The holes 133H1 and 133H2 may be long holes 133H1 and 133H2 havinga major axis and a minor axis. The major axis of the holes 133H1 and133H2 may be parallel to a longitudinal direction of the frame 133. Theminor axis of the holes 133H1 and 133H2 may cross the longitudinaldirection of the frame 133.

Referring to FIGS. 17 to 19 , the pivot pin 133 c may be inserted intothe holes 133H1 and 133H2 of the flip frame 133, and the moving block134 may move on the lead screw 135. As the moving block 134 moves on thelead screw 135, the display panel 110 changes from flat (see FIG. 17 )to curved (see FIG. 17 ), in which the display panel 110 may be curvedwith a constant curvature (see FIG. 19 ).

When the display panel 110 starts to be curved after being in a flatshape, or when the display panel 110, after being curved with apredetermined curvature, changes to a flat shape as a radius ofcurvature becomes greater than a predetermined radius of curvature, amoving direction of the moving block 134 may be changed. That is, at astart point and an end point of the moving block 134, the display panel110 may be flat or may be curved with a predetermined curvature.

When the moving direction of the moving block 134 is changed at thestart point and/or the end point, a direction in which the pivot pin 133c applies force to the holes 133H1 and 133H2 of the flip frame 133 maybe changed. As the direction in which the pivot pin 133 c applies forceto the holes 133H1 and 133H2 of the flip frame 133 is changed, clearanceformed between the pivot pin 133 c and the holes 133H1 and 133H2 of theflip frame 133 may cause a continuous change in curvature of the displaypanel 110 to stop.

Referring to FIGS. 20 and 21 , the major axis of the holes 133H1 and133H2 of the flip frame 133 may form an angle θ with respect to alongitudinal direction of the flip frame 133. For example, the angle θmay correspond to an angle θ formed between the pivot shafts 141 p and142 p of the wings 141 and 142 (see FIG. 8 ) and the start point or theend point of the moving block 134 with respect to a line connecting thepivot shafts 141 p and 142 p of the wings 141 and 142.

As the holes 133H1 and 133H2 of the flip frame 133 are moved closer tothe start point or the end point of the moving block 134, the major axisof the holes 133H1 and 133H2 may become parallel to a baselineconnecting the pivot shafts 141 p and 142 p of the wings 141 and 142 ofthe moving block 134. When a moving direction of the pivot pin 133 c ischanged, the moving direction of the pivot pin 133 c may be aligned witha direction of the minor axis of the holes 133H1 and 133H2 of the flipframe 133.

When the moving direction of the pivot pin 133 c is changed such thatthe moving direction of the pivot pin 133 c is aligned with the minoraxis of the holes 133H1 and 133H2 of the flip frame 133, clearanceformed between the pivot pin 133 c and the holes 133H1 and 133H2 of theflip frame 133 may be minimized. Accordingly, by the movement and/ordirection change of the moving block 134, the pivot pin 133 c maycontinuously transmit power or force to the flip frame 133.

Referring to FIGS. 22 and 23 , a first sliding mount 151 may be fixed tothe rear surface of the plate 120 at a position adjacent to the firstshort side SS1 of the plate 120. The second sliding mount 152 may befixed to the rear surface of the plate 120 at a position adjacent to thesecond short side SS2 of the plate 120.

The driving module 130 may be disposed between the first sliding mount151 and the second sliding mount 152 and may be coupled to the rearsurface of the plate 120. The first wing 141 may have a first endpivotally connected to the driving module 130 and a second end coupledto the first sliding mount 151. The second end of the first wing 151 maymove on the first sliding mount 151. The second wing 142 may have afirst end pivotally connected to the driving module 130 and a second endcoupled to the second sliding mount 152. The second end of the secondwing 142 may move on the second sliding mount 152.

A PCB plate 159 may be disposed at the rear of the driving module 130.The PCB plate 159 may be fixed to the rear bracket 130R (see FIG. 2 ) ofthe driving module 130. Printed Circuit Boards (PCBs) may be coupled tothe PCB plate 159.

A side cover 201 may form a wall around the sides of the driving module130. For example, the side cover 201 may be a square frame. A back cover(not shown) may be coupled to the side cover 201 while covering thedriving module 130.

A slide bracket 160 may be coupled or fixed to distal ends of the wings141 and 142. The slide bracket 160 may include a body 161 having anelongated plate shape and protrusions 162 and 163 formed adjacent toboth ends of the body 161. The protrusions 162 and 163 may be referredto as friction protrusions 162 and 163 or contact protrusions 162 and163. For example, the slide bracket 160 may be made of metal.

There may be a plurality of protrusions 162 and 163. The plurality ofprotrusions 162 and 163 may include front protrusions 163 and rearprotrusions 162. The front protrusions 163 may be formed at the firstcorner C1 and/or the fourth corner C4 of the body 161. The frontprotrusions 163 may protrude by being pressed toward the front of thebody 161. The front protrusions 163 may have a dome shape or ahemispherical shape. The rear protrusions 162 may be formed at thesecond corner C2 and/or the third corner C3 of the body 161. The rearprotrusions 162 may protrude by being pressed toward the rear of thebody 161. The rear protrusions 162 may have a dome shape or ahemispherical shape. The rear protrusions 162 may be adjacent to thefront protrusions 163. The front protrusions 163 and the rearprotrusions 162 may be disposed sequentially along the short side of thebody 161. One pair of the front protrusion 163 and the rear protrusion162 may be disposed opposite another pair of the front protrusion 163and the rear protrusion 162 with respect to the wings 141 and 142.

Referring to FIGS. 24 and 25 , the slide bracket 160 may be coupled tothe guide cover 170. The slide bracket 160 may be inserted into theguide cover 170 and may move on the guide cover 170. For example, theguide cover 170 may be made of a synthetic resin having low frictionalforce. For example, the guide cover 170 may be made of a low frictionmaterial. For example, the guide cover 170 may be made ofpolyoxymethylene (POM, acetal homopolymer).

The guide cover 170 may include a base 171, a side rail 172, and afixing plate 173. The base 171 may have an elongated plate shape and mayface the slide bracket 160. The side rail 172 may be formed at both endsof the base 171. The side rail 172 may include a lower part 172L and anupper part 172U. The lower part 172L may extend from the base 171.

A lower trench 172LT may be formed in the lower part 172L. The lowertrench 172LT may be formed in the lower part 172L as an upper surface ofthe lower part 172L is recessed inward in an elongated shape. Forexample, the lower trench 172LT may be in the shape of a half pipe. Thefront protrusion 163 of the slide bracket 160 may move on the lowertrench 172LT. A radius of curvature of the front protrusion 163 may besmaller than a radius of curvature of the lower trench 172LT.Accordingly, the front protrusion 163 may make point contact with thelower trench 172LT.

The upper part 172U may be spaced apart from the lower part 172LT andmay face the lower part 172L. A gap may be formed between the upper prat172U and the lower part 172L, and the slide bracket 160 may be insertedinto the gap. An upper trench 172UT may be formed in the upper part172U. The upper trench 172UT may be formed in the upper part 172UT as alower surface of the upper part 172U is recessed inward in an elongatedshape. For example, the upper trench 172UT may be in the shape of a halfpipe. The rear protrusion 162 of the slide bracket 160 may move on thelower trench 172LT. A radius of curvature of the rear protrusion 162 maybe smaller than a radius of curvature of the upper trench 172UT.Accordingly, the rear protrusion 162 may make point contact with theupper trench 172UT.

As the slide bracket 160 and the guide cover 170 are coupled to eachother, it is possible to prevent drooping of the wings 141 and 142 dueto self-weight.

The slide bracket 160 may include a coupling part 161 a and a PEM nut161 b or a coupling protrusion 161 b for coupling with the wings 141 and142. The guide cover 170 may include a PEM nut 170 b or a couplingprotrusion 170 b for coupling with the sliding mounts 151 and 152.

Referring to FIGS. 26 to 28 , the slide bracket 160 may be coupled tofront surfaces of the wing blades 141 a and 142 b at a position adjacentto the distal ends of the wings 141 and 142. The guide cover 170 may befixed to the sliding mounts 151 and 152. The slide bracket 160 may beinserted into the guide cover 170 and may make a reciprocal movement onthe guide cover 170 in a longitudinal direction of the wings 141 and142.

When the display panel 110 changes to a flat shape after being curvedwith a predetermined curvature, the slide bracket 160 may move on theguide cover 170 toward the short sides SS1 and SS2 of the plate 120. Thefront protrusion 163 may move on the lower trench 172LT. The frontprotrusion 163 may move on the lower trench 172LT while making contactwith or rubbing smoothly against a surface of the lower trench 172LT.The rear protrusion 162 may move on the upper trench 172UT while makingcontact with or rubbing smoothly against a surface of the upper trench172UT.

When the display panel 110 changes from flat to curved with apredetermined curvature, the slide bracket 160 may move on the guidecover 170 from the short sides SS1 and SS2 of the plate 120 toward thedriving module 130. The front protrusion 163 may move on the lowertrench 172LT. The front protrusion 163 may move on the lower trench172LT while making contact with or rubbing smoothly against the surfaceof the lower trench 172LT. The rear protrusion 162 may move on the uppertrench 172UT while making contact with or rubbing smoothly against thesurface of the upper trench 172UT.

As the protrusions 162 and 163 make point contact with the trenches172LT and 172UT, it is possible to reduce friction and abrasion causedby the friction, and no lubricant is required, thereby improvingstructural durability of a mechanism.

Referring to FIG. 29 , the lower trench 172LT may include a firstinclined surface 172 a and a second inclined surface 172 b, and theupper trench 172UT may include a third inclined surface 172 c and afourth inclined surface 172 d. The first inclined surface 172 a may forma first angle θ1 with respect to a base surface LB. The second inclinedsurface 172 b may form a second angle θ2 with respect to the basesurface LB. The second inclined surface 172 b may make contact with thefirst inclined surface 172 a.

The third inclined surface 172 c may form a third angle θ3 with respectto the base surface UB. The fourth inclined surface 172 d may form afourth angle θ4 with respect to the base UB. The fourth inclined surface172 d may be in contact with the third inclined surface 172 c. Aboundary between the third inclined surface 172 c and the fourthinclined surface 172 d may correspond to or may be aligned with aboundary between the first inclined surface 172 a and the secondinclined surface 172 b. For example, the boundary between the thirdinclined surface 172 c and the fourth inclined surface 172 d may bevertically aligned on the same line as the boundary between the firstinclined surface 172 a and the second inclined surface 172 b.

The second angle θ2 may be greater than the first angle θ1. The thirdangle θ3 may be greater than the fourth angle θ4. The first inclinedsurface 172 a may be longer than the second inclined surface 172 b. Thefourth inclined surface 172 d may be longer than the third inclinedsurface 172 c. The third inclined surface 172 c may face the firstinclined surface 172 a, and the second inclined surface 172 b may facethe fourth inclined surface 172 d.

Referring to FIG. 30 along with FIG. 26 , the slide bracket 160, towhich the wing 140 is coupled, may be inserted into or coupled to theguide cover 170 and the sliding mounts 151 and 152. As the wings 151 and152 move by pivoting about the driving module 130, the slide bracket 160may move on the guide cover 170 in a longitudinal direction of the wing140.

When the wing 140 causes the display panel 110 to change from flat tocurved, the slide bracket 160 may move from the first inclined surface172 a to the second inclined surface 172 b. When the wing 140 causes thedisplay panel 110, which is curved with a predetermined curvature, tochange to a flat shape, the slide bracket 160 may move from the secondinclined surface 172 b to the first inclined surface 172 a.

Referring to FIG. 30 along with FIG. 27 , while the wing 140 causes thedisplay panel 110 to change from flat to curved, the front protrusion163 of the slide bracket 160 may slide in contact with the lower trench172LT. The front protrusion 163 may press and rub against the lowertrench 172LT. The rear protrusion 162 may slide in contact with theupper trench 172UT or may slide while being supported by the uppertrench 172UT.

Referring to FIG. 30 along with FIG. 28 , while the wing 140 causes thedisplay panel 110, which is curved with a predetermined curvature, tochange to a flat shape, the front protrusion 63 of the slide bracket 160may slide in contact with the lower trench 172LT or may slide whilebeing supported by the lower trench 172LT. The rear protrusion 162 mayslide in contact with the upper trench 172UT or may slide while beingsupported by the upper trench 172UT.

Accordingly, when the display panel 110 is curved, the display panel 110curved with a predetermined curvature may have a constant curvature or acurvature close to the constant curvature.

Referring to FIGS. 31 and 32 , the plate 120 (see FIG. 2 ) may bereferred to as a bottom cover 120 and 200 or a rear cover 120 and 200.The bottom cover 200 may include a main frame 210 and a side bracket220.

The main frame 210 may be a hollow rectangular frame. For example, themain frame 210 may be made of a synthetic resin. The main frame 210 mayinclude a horizontal part 210H and a vertical part 210V. The horizontalpart 210H may be elongated along the sides LS1, LS2, SS1, and SS2 of thedisplay panel 110 in a plane direction of the display panel 110 (seeFIG. 1 ). The vertical part 210V may extend in a direction intersectingan extending direction of the horizontal part 210H and may be formed atan edge of the horizontal part 210H. The main frame 210 may include afirst long side part 210LS1, a second long side part 210LS2, a firstshort side part 210SS1, and a second short side part 210SS2. The firstlong side part 210LS1, the second long side part 210LS2, the first shortside part 210SS1, and the second short side part 210SS2 may beintegrally formed with each other (see FIG. 44 ). The main frame 210 maybe flexible in a direction in which the display panel 110 is curved.

The side bracket 220 may have an elongated plate shape and may bepressed and curved. There may be a plurality of side brackets 220. Theside bracket 220 may include a flat plate part 221, rib parts 222 a, 222b, and 222 c, and a support part 223. As the flat plate part 221 ispressed forward, the rib parts 222 a, 222 b, and 222 c may protrude fromthe flat plate part 221. The rib parts 222 a, 222 b, and 222 c mayinclude a first rib 222 a, a second rib 222 b, and a connection part222. The first rib 222 a may be parallel to the second rib 222 b, andthe connection part 222 c may connect the ends of the first rib 222 aand the second rib 222 b. The support part 223 may be pressed rearwardfrom the flat plate part 221 to protrude from the flat plate part 221.The support part 223 may be disposed at corners C3 and C4 formed betweenthe short sides SS1 and SS2 and the long sides LS1 and LS2 of the mainframe 210. The side bracket 220 may be fixed to the main frame 210 by afastening member f. For example, the fastening member f may be a screw.

A first side bracket 220 may be disposed parallel to the first shortside part 210SS1 of the main frame 210, and a second side bracket 220may be disposed parallel to the second short side part 210SS2 of themain frame 210. The side bracket 220 may be coupled to the main frame210. The first side bracket 220 may be coupled to the first short sidepart 210SS 1, and the second side bracket 220 may be coupled to thesecond short side part 210SS2, thereby providing rigidity to the mainframe 210.

A coupling protrusion 211 may be formed on the first long side part210LS1 and/or the second long side part 210LS2 of the main frame 210.The coupling protrusion 211 may be referred to as a coupling part 211.There may be a plurality of coupling protrusions 211. The couplingprotrusion 211 may be disposed opposite the vertical part 210V withrespect to the horizontal part 210H. A first plurality of couplingprotrusions 211 may be formed at an edge of the first long side part210LS1. A second plurality of coupling protrusions 211 may be formed atan edge of the second long side part 210LS2. The number of the secondplurality of coupling protrusions 211 may be greater than the number ofthe first plurality of coupling protrusions 211.

Referring to FIGS. 33 and 34 , adhesive members AD may be fixed to themain frame 210. For example, the adhesive member AD may be double-sidedtape. In another example, the adhesive member AD may be single-sidedtape. The adhesive member AD may have elasticity. For example, theadhesive member AD may be a sponge.

The adhesive members AD may be disposed at regular intervals on thehorizontal part 210H (see FIG. 32 ) of the first long side part 210LS1of the main frame 210. The adhesive members AD may be fixed onto thecoupling protrusions 211 to correspond to the coupling protrusions 211of the second long side part 210LS2 of the main frame 210. The adhesivemembers AD may be disposed at regular intervals on the horizontal part210H (see FIG. 32 ) of the first short side part 210SS1 and/or thesecond short side part 210SS2.

The bottom cover 200 may include an inner plate 230. The inner plate 230may be coupled to the main frame 210 while covering the main frame 210and/or the side bracket 220. The inner plate 230 may be fixed to theadhesive members AD.

The inner plate 230 may include a flat plate part 231, side parts 232and 233, and a receiving part 234. For example, the inner plate 230 mayinclude metal and may be a thin plate.

The side parts 232 and 233 may protrude by being pressed forward fromthe flat plate part 231. The side parts 232 and 233 may protrude whileforming a step upward from the flat plate part 231. The side parts 232and 233 may cover the side brackets 220.

The receiving part 234 may be recessed by being pressed rearward fromthe flat plate part 231. The receiving part 234 may be recessed whileforming a step downward from the flat plate part 231. The receiving part234 may form a plurality of steps with respect to the flat plate part231. A boundary, at which the steps are formed between the flat platepart 231 and the receiving part 234, may be referred to as a boundarypart.

Cable holes SH1 and SH2 may be formed in the receiving part 234. Thecable holes SH1 and SH2 may be formed by passing through the receivingpart 234. A first cable hole SH1 may extend over a first distance D1 onthe left side of the inner plate 231. The second cable hole SH2 mayextend over a first distance D1 on the right side of the inner plate230.

A plurality of holes H1, H2, H3, and H4 may be formed in the flat platepart 231 of the inner plate 230. For example, the holes H1, H2, H3, andH4 may have a circular shape or an elliptical shape. The plurality ofholes H1 and H2 may form rows and columns in an up-down direction of theinner plate 230. The number of columns of the plurality of holes H1 andH2 may be smaller than the number of rows thereof. For example, thenumber of columns of the plurality of holes H1 and H2 may be 10. Inanother example, the number of rows of the plurality of holes H1 and H2may be 19. For example, the plurality of holes H1 and H2 may have acircular shape and may be formed at equal intervals.

The plurality of holes H3 and H4 may be formed in the boundary part atwhich the steps are formed between the flat plate part 231 and thereceiving part 234. For example, the plurality of holes H3 and H4 may belong holes or may have an elliptical shape. A major axis of the holes H3and H4 may be vertically aligned. The number of the holes H3 and H4formed in the boundary part may be smaller than the number of the holesH1 and H2 formed in the flat plate part 231.

The first distance D1 from a center line CL of the inner plate 230 to afirst outermost column C1 of the plurality of holes H1 and H2 may besmaller than a second distance D2 from the first short side SS1 and/orthe second short side SS2 of the inner plate 230 to a second outermostcolumn C2 of the plurality of holes H1 and H2.

Accordingly, when the inner plate 230 is curved, a constant curvature ora curvature close to the constant curvature may be achieved.

Referring to FIG. 35 , a first adhesive member AD1 may be fixed to acentral region of the inner plate 230. The first adhesive member AD1 maybe elongated horizontally to be fixed to the central region of the innerplate 230. A plurality of first adhesive members AD1 may be verticallyspaced apart from each other to be adhered to the inner plate 230. Forexample, the first adhesive member AD1 may be single-sided tape. Thecentral region of the inner plate 230 and the first adhesive member AD1may support the center of the display panel 110 (see FIG. 2 ). As thedisplay panel 110 is curved, the display panel 110 may be curved with acurvature that is symmetrical with respect to the center of the displaypanel 110.

A second adhesive member AD2 may be disposed between the first adhesivemember AD1 and the second short side SS2 of the inner plate 230. Thesecond adhesive member AD2 may be elongated vertically to be fixed tothe inner plate 230. A plurality of second adhesive members AD2 may behorizontally spaced apart from each other to be adhered to the innerplate 230. For example, the second adhesive member AD2 may bedouble-sided tape. As the display panel 110 is curved, the display panel110 fixed to the second adhesive member AD2 may slip relative to theinner plate 230, and the second adhesive member AD2 may be deformed inthe horizontal direction in response to the relative slip occurringbetween the display panel 110 and the inner plate 230.

A third adhesive member AD3 may be disposed between the first adhesivemember AD1 and the first short side SS1 of the inner plate 230. Thethird adhesive member AD3 may be elongated vertically to be fixed to theinner plate 230. A plurality of third adhesive members AD3 may behorizontally spaced apart from each other to be adhered to the innerplate 230. For example, the third adhesive member AD3 may bedouble-sided tape. As the display panel 110 is curved, the display panel110 fixed to the third adhesive member AD3 may slip relative to theinner plate 230, and the third adhesive member AD3 may be deformed inthe horizontal direction in response to the relative slip occurringbetween the display panel 110 and the inner plate 230. A length, width,and position of the third adhesive member AD3 may be symmetric to thesecond adhesive member AD2 with respect to the first adhesive memberAD1. Accordingly, the display panel 110 may be curved symmetrically.

A fourth adhesive member AD4 may be disposed along the first long sideLS1 of the inner plate 230. There may be a plurality of fourth adhesivemembers AD4, and the plurality of fourth adhesive members AD4 may form ashort segment. The plurality of fourth adhesive members AD4 aresequentially arranged along the first long side LS1 of the inner plate230 and may be spaced apart from each other. For example, the fourthadhesive member AD4 may be double-sided tape. Accordingly, as thedisplay panel 110 is curved, the fourth adhesive member AD4 may respondto the slip occurring between the display panel 110 and the inner plate230 and may improve coupling between the display panel 110 and the innerplate 230.

A fifth adhesive member AD5 may be disposed along the second long sideLS2 of the inner plate 230. The fifth adhesive member AD5 may bedisposed between the coupling parts 211 of the main frame 210 and may befixed to the receiving part 234 of the inner plate 230. There may be aplurality of fifth adhesive members AD5, and the plurality of fifthadhesive members AD5 may form a segment. The fifth adhesive member AD5may be longer than the fourth adhesive member AD4. For example, thefifth adhesive member AD5 may be double-sided tape.

A sixth adhesive member AD6 may be elongated to be fixed to the innerplate 230 at a position parallel to and adjacent to the second shortside SS2 of the inner plate 230. A seventh adhesive member AD7 may beelongated to be fixed to the inner plate 230 at a position parallel toand adjacent to the first short side SS1 of the inner plate 230. Forexample, the sixth adhesive member AD6 and/or the seventh adhesivemember AD7 may be double-sided tape.

An insulation sheet IS may be fixed to the receiving part 234 of theinner plate 230. The insulation sheet IS may be elongated along thesecond long side LS2 of the inner plate 230, and may be disposedparallel to the second long side LS2 of the inner plate 230 at aposition adjacent to the coupling part 211 of the main frame 210 (seeFIG. 30 ). A source PCB of the display panel 110 may be disposed in thereceiving part 234, and the insulation sheet IS may prevent electricalshort circuit between the inner plate 230, including metal, and thesource PCB.

A gasket AL may be fixed to the inner plate 230. For example, the gasketAL may include aluminum. The gasket AL may be elongated and may bedisposed in the receiving part 234. The receiving part 234 may form aplurality of steps with respect to the flat plate part 231. Thereceiving part 234 may include a first receiving part 234 b which isstepped downward from the flat plate part 231, and a second receivingpart 234 a which is stepped downward from the first receiving part 234b. The gasket AL may be disposed in the first receiving part 234 b.

Referring to FIGS. 36 and 37 , a buffering member RB may be fixed to arear surface of the inner plate 230. The buffering member RB may bereferred to as an insulation member RB. The buffering member RB may beadhered to a rear surface of the flat plate part 231 and/or a rearsurface of the receiving part 234. For example, the buffering member RBmay be rubber and may be adhered to the rear surface of the flat platepart 231 and a rear surface of the first receiving part 234. In anotherexample, the buffering member RB may be insulation tape.

An eighth adhesive member AD8 and/or a ninth adhesive member AD9 may befixed to a rear surface of the side bracket 220. The eighth adhesivemember AD8 may be elongated and disposed parallel to the second shortside SS2 of the main frame 210. The ninth adhesive member AD9 may beelongated and disposed parallel to the first short side SS1 of the mainframe 210.

Tenth adhesive members AD10 may include a plurality of segments and maybe sequentially arranged along the first long side LS1 of the main frame210. An eleventh adhesive member AD11 may be fixed to the rear surfaceof the receiving part 234 at a position adjacent to the second long sideLS2 of the main frame 210. There may be a plurality of eleventh adhesivemembers AD11, and the plurality of eleventh adhesive members AD11 may bedisposed between the coupling parts 211 of the main frame 210.

A twelfth adhesive member AD12 and/or a thirteenth adhesive member AD13may be fixed to a rear surface of the support part 223 of the sidebracket 220.

The bottom cover 200 may include an outer plate 240. The outer plate 240disposed at the rear of the inner plate 230 may be fixed to the mainframe 210 and/or the rear surface of the side bracket 220. For example,the outer plate 240 may be a flexible thin metal plate. In anotherexample, the outer plate 240 may be a flexible thin plastic plate.

The outer plate 240 may include the cable holes SH1 and SH2. The cableholes SH1 and SH2 may include a first cable hole SH1 and a second cablehole SH2. The first cable hole SH1 of the outer plate 240 may correspondto the second cable hole SH2 of the inner plate 230, and the secondcable hole SH2 of the outer plate 240 may correspond to the first cablehole SH1 of the inner plate 220.

The insulation sheet IS may be fixed to a front surface of the outerplate 240 at a position adjacent to the cable holes SH1 and SH2. Theinsulation sheet IS may be adhered to the front surface of the outerplate 240 while covering edges of the cable holes SH1 and SH2.

Referring to FIG. 38 , the bottom cover 200 may include a rear plate250. The rear plate 250 may be referred to as a center plate 250. Therear plate 250 may be coupled between the inner plate 230 and the outerplate 240. The rear plate 250 may be fixed to the front surface of theouter plate 240 by an adhesive member AD (not shown). In addition, therear plate 250 may be fixed to the rear surface of the inner plate 230by the adhesive member AD. A size of the rear plate 250 may be smallerthan a size of the outer plate 240. For example, the rear plate 250 maybe a thin metal plate. A thickness of the rear plate 250 may be smallerthan a thickness of the outer plate 240. For example, the outer plate240 may have a thickness of 0.5 mm, and the rear plate 250 may have athickness of 0.4 mm. The rear plate 250 may reinforce the bendingrigidity of a center portion of the bottom cover 200.

A length L of the rear plate 250 may be equal to or slightly smallerthan a length of the first short side SS1 and/or a length of the secondshort side SS2. A width W of the rear plate 250 may be smaller than alength of the first long side LS1 and/or a length of the second longside LS2 of the outer plate 240. For example, a first distance W1 fromthe first short side SS1 of the outer plate 240 to the rear plate 250may be equal to a second distance W2 from the second short side SS2 ofthe outer plate 240 to the rear plate 250. In another example, the widthW of the rear plate 250 may be greater than the first distance W1 and/orthe second distance W2.

The rear plate 250 may have cable holes SH1 and SH2. The cable holes SH1and SH2 of the rear plate 250 may correspond to the cable holes SH1 andSH2 of the inner plate 230 and the outer plate 240.

A twentieth adhesive member AD20 may be elongated in an up-downdirection of the rear plate 250. There may be a plurality of twentiethadhesive members AD20 which may be spaced apart from each other in aleft-right direction of the rear plate 250.

A twenty-first adhesive member AD21 may be elongated along an upper sideof the rear plate 250 and may be fixed to a front surface of the rearplate 250. A plurality of twenty-second adhesive members AD22 may beprovided and may be short segments. The twenty-second adhesive membersAD22 may be sequentially arranged along the upper side of the rear plate250. The twenty-second adhesive members AD22 may be spaced apart fromeach other.

A twenty-third adhesive members AD23 may be sequentially arranged alonga lower side of the rear plate 250 and may be fixed to the front surfaceof the rear plate 250. A plurality of twenty-third adhesive members AD23may be provided and may be spaced apart from each other. Thetwenty-third adhesive members AD23 may be formed as short segments.

Referring to FIGS. 39 to 41 , as the inner plate 230 may be axisymmetricwith respect to a center line CL, a configuration of the left side ofthe inner plate 230 will be described below while a description of theright side, which is symmetrical to the left side, may be omitted (seeFIGS. 40 and 41 ).

A plurality of holes H may be formed in the flat plate part 231 of theinner plate 230. A plurality of slits SL may be formed in the flat platepart 231 of the inner plate 230 and/or the side parts 232 and 233. Theplurality of slits SL may include long slits SL1 and SL3 and short slitsSL2 and SL4. The plurality of holes H may be spaced apart by a firstdistance D1 from the center line CL of the inner plate 230. Theplurality of holes H may be formed in the flat plate part 231 whileforming rows and columns.

A first plurality of holes H1 may be formed on the right side of thecenter line CL of the inner plate 230 and may form a rectangular shapewhich is elongated in an up-down direction of the inner plate 230. Forexample, the first plurality of holes H1 may form 19 rows and 4 columns.The holes H1 may be arranged at regular intervals. An area in which thefirst plurality of holes H1 are formed may be referred to as a firstarea A1.

A first plurality of long slits SL1 may be formed on the right side ofthe center line CL of the inner plate 230 and may be elongatedhorizontally. The first plurality of long slits SL1 may be verticallyspaced apart from each other at regular intervals. A tenth plurality ofholes H10 may be formed between the first plurality of long slits SL1.The tenth plurality of holes H10 may be sequentially arranged in alongitudinal direction of the first plurality of long slits SL1.Intervals between the tenth plurality of holes H10 may be equal tointervals between the first plurality of holes H1. An area in which thefirst plurality of long slits SL1 are formed may be referred to as asecond area A2. The tenth plurality of holes H10 may be formed in thesecond area A2. The second area A2 may be adjacent to the first area A1and may be disposed between the first area A1 and the second short sideSS2. For example, a length of the second area A2 may be equal to alength of the first area A1. In another example, a width of the secondarea A2 may be greater than a width of the first area A1.

A third area A3 may be disposed between the second area A2 and thesecond short side SS2. The third area A3 may partially overlap thesecond area A3. The first plurality of short slits SL2 may be formed inthe third area A3. The first plurality of short slits SL2 may beelongated horizontally. Each of the first plurality of short slits SL2may be disposed between each of the first plurality of long slits SL1. Astep formed at a boundary between the flat plate part 231 and the sidepart 232 may be formed in the third area A3. A step formed at a boundarybetween the flat plate part 231 and the side part 232 may be disposedoutside of the second area A2 and inside the third area A3. For example,a length of the third area A3 may be equal to a length of the secondarea A2. In another example, a width of the third area A3 may be smallerthan a width of the second area A2. In yet another example, a width ofthe third area A3 may be smaller than a width of the first area A1.

A second plurality of holes H2 may be located on the left side of thecenter line CL of the inner plate 230 and may form a rectangular shapewhich is elongated in the up-down direction of the inner plate 230. Forexample, the second plurality of holes H2 may form 19 rows and 4columns. The holes H2 may be arranged at regular intervals. An area inwhich the second plurality of holes H2 are formed may be referred to asa fourth area A4.

A second plurality of long slits SL3 may be formed on the left side ofthe center line CL of the inner plate 230 and may be elongatedhorizontally. The second plurality of long slits SL3 may be verticallyspaced apart from each other at regular intervals. A twentieth pluralityof holes H20 may be formed between the second plurality of long slitsSL3. The twentieth plurality of holes H20 may be sequentially arrangedin the longitudinal direction of the second plurality of long slits SL3.Intervals between the twentieth plurality of holes H20 may be equal tointervals between the second plurality of holes H2. An area in which thesecond plurality of long slits SL3 are formed may be referred to as afifth area A5. The twentieth plurality of holes H20 may be formed in thefifth area A5. The fifth area A5 may be adjacent to the fourth area A4and may be disposed between the fourth area A4 and the first short sideSS1. For example, a length of the fifth area A5 may be equal to a lengthof the fourth area A4. In another example, a width of the fifth area A5may be greater than a width of the fourth area A4.

A sixth area A6 may be disposed between the fifth area A5 and the firstshort side SS1. The sixth area A6 may partially overlap the fifth areaA5. The second plurality of short slits SL4 may be formed in the sixtharea A6. The second plurality of short slits SL4 may be elongatedhorizontally. Each of the second plurality of short slits SL4 may bedisposed between each of the second plurality of long slits SL3. A stepformed at a boundary between the flat plate part 231 and the side part233 may be formed in the sixth area A6. A step formed at a boundarybetween the flat plate part 231 and the side part 233 may be disposedoutside of the fifth area A5 and inside the sixth area A6. For example,a length of the sixth area A6 may be equal to a length of the fifth areaA5. In another example, a width of the sixth area A6 may be smaller thana width of the fifth area A5. In yet another example, a width of thesixth area A6 may be smaller than a width of the fourth area A4.

A seventh area A7 may be an area located on the right side of the centerline CL of the inner plate 230 and having steps formed between the flatplate part 231 and the first receiving part 234 b and the secondreceiving part 234 a. An eighth area A8 may be an area located on theleft side of the center line CL of the inner plate 230 and having stepsformed between the flat plate part 231 and the first receiving part 234b and the second receiving part 234 a.

There may be a plurality of third holes H3, which may be long holeselongated vertically. The third holes H3 may be formed in the seventharea A7. For example, the third holes H3 may be formed in a step at aboundary between the flat plate part 231 and the first receiving part234 b. The third holes H3 are adjacent to and below the first area A1and may be sequentially spaced apart from each other in a widthdirection of the first area A1.

A fiftieth hole H50 may be formed in the seventh area A7. There may be aplurality of fiftieth holes H50, which may be long holes elongatedhorizontally. The fiftieth holes H50 may be formed in a step at aboundary between the flat plate part 231 and the first receiving part234 b. A fifty-first hole H51 may be disposed adjacent to the third holeH3 and the second area A2. A fifty-second hole H52 may be disposedadjacent to the second area A2 and the fifty-first hole H51. Afifty-third hole H53 may be disposed adjacent to the second area A2 andthe fifty-second hole H52. The insulation member RB (see FIG. 36 ) maycover the fiftieth holes H50.

There may be a plurality of fourth holes H4, which may be long holeselongated vertically. The fourth holes H4 may be formed in the eightharea A8. For example, the fourth holes H4 may be formed in a step at aboundary between the flat plate part 231 and the first receiving part234 b. The fourth holes H3 are adjacent to and below the fourth area A4and may be sequentially spaced apart from each other in a widthdirection of the fourth area A4.

A sixtieth hole H60 may be formed in the eighth area A8. There may be aplurality of sixtieth holes H60, which may be long holes elongatedhorizontally. The sixtieth holes H60 may be formed in a step at aboundary between the flat plate part 231 and the first receiving part234 b. A sixty-first hole H61 may be disposed adjacent to the fourthhole H4 and the fifth area A5. A sixty-second hole H62 may be disposedadjacent to the fifth area A5 and the sixty-first hole H61. Asixty-third hole H63 may be disposed adjacent to the fifth area A5 andthe sixty-second hole H62. For example, a length of the sixty-secondhole H62 may be greater than a length of the sixty-first hole H61 or alength of the sixty-third hole H63. In another example, a width of thesixty-second hole H62 may be greater than a width of the sixty-firsthole H61 and/or a width of the sixty-third hole H63. The insulationmember RB (see FIG. 36 ) may cover the sixtieth holes H60.

A third short slit SL20 may be formed in the seventh area A7 at aposition adjacent to the third area A3. The third short slit SL20 may beformed in a step at a boundary between the flat plate part 231 and theside part 232. A length of the third short slit SL20 may be smaller thana length of the first short slit SL2.

A fourth short slit SL40 may be formed in the eighth area A8 at aposition adjacent to the sixth area A6. The fourth short slit SL40 maybe formed in a step at a boundary between the flat plate part 231 andthe side part 233. A length of the fourth short slit SL40 may be smallerthan a length of the second short slit SL4.

Accordingly, the inner plate 230 may be curved with a constant curvatureor a curvature close to the constant curvature. In addition, when theinner plate 230 is curved to ensure rigidity and/or to store the S-PCB,it may be difficult to achieve a constant curvature for the curved innerplate 230, but in this embodiment, the problem may be solved, and thedisplay panel 110 and the bottom cover 200 may be curved with theconstant curvature or a curvature close to the constant curvature.

Referring to FIGS. 42 and 43 , the outer plate 240 may be coupled to therear of the inner plate 230 (see FIG. 36 ), and the rear plate 250 maybe coupled between the outer plate 240 and the inner plate 230. Theouter plate 240 may be coupled or fixed to the inner plate 230 byadhesive members AD and ADR. The eighth adhesive members AD8 disposed ona rear surface of the right side bracket 220 may be arranged in thelongitudinal direction of the side bracket 220. The ninth adhesivemembers AD9 disposed on a rear surface of the left side bracket 220 maybe disposed in the longitudinal direction of the side bracket 220. Theeighth adhesive members and/or the ninth adhesive members AD9 may beformed as a plurality of segments.

Rear adhesive members ADR1 and ADR2 may be fixed to the rear surface ofthe inner plate 230. The rear adhesive members ADR1 and ADR2 may beelongated and disposed parallel to the up-down direction of the innerplate 230. A first rear adhesive member ADR1 may be disposed between theleft side bracket 220 and the rear plate 250. The first rear adhesivemember ADR1 may be disposed closer to the rear plate 250 than to theleft side bracket 220.

The second rear adhesive member ADR2 may be disposed between the rightside bracket 220 and the rear plate 250. The second rear adhesive memberADR2 may be disposed closer to the rear plate 250 than to the right sidebracket 220.

Magnets 225 and 226 may be fixed to the side bracket 220. The outerplate 240 may be coupled to the side bracket 220 by the magnets 225 and226. A first magnet 225 may be fixed to the rear surface of the sidebracket 220 at a position adjacent to an upper end of the side bracket220. A second magnet 226 may be fixed to the rear surface of the sidebracket 220 at a position adjacent to a lower end of the side bracket220. For example, the outer plate 240 may be a metal plate.

The rear plate 250 may be coupled between the inner plate 230 and theouter plate 240 by the adhesive member AD. The adhesive member AD may befixed to the front surface of the outer plate 240 and the rear surfaceof the rear plate 250. A thirty-third adhesive member AD33 may be formedas a plurality of segments, which may be spaced apart from each otheralong the first long side LS1 of the outer plate 240. A thirty-fourthadhesive member AD34 may be formed as a plurality of segments, which maybe spaced apart from each other along the second long side LS2 of theouter plate 240.

A thirtieth adhesive member AD30 may be elongated along the center lineCL of the outer plate 240. The thirtieth adhesive member AD30 may beformed as a plurality of segments. A thirty-first adhesive member AD31may be disposed between the right side of the rear plate 250 and thecenter line CL. For example, the thirty-first adhesive member AD31 maybe disposed adjacent to the right side of the rear plate 250. Thethirty-first adhesive member AD31 may form a twentieth angle theta20with respect to the center line CL of the outer plate 240. For example,in the thirty-first adhesive member AD31, a distance DT from a distalend adjacent to the first long side LS1 to the center line CL may begreater than a distance DB from a distal end adjacent to the second longside LS2 to the center line CL.

A thirty-second adhesive member AD32 may be disposed between the leftside of the rear plate 250 and the center line CL. For example, thethirty-second adhesive member AD32 may be disposed adjacent to the leftside of the rear plate 250. The thirty-second adhesive member AD32 mayform a tenth angle theta10 with respect to the center line CL of theouter plate 240. For example, in the thirty-second adhesive member AD32,the distance DT from the distal end adjacent to the first long side LS1to the center line CL may be greater than the distance DB from thedistal end adjacent to the second long side LS2 to the center line CL.

Accordingly, the display panel 110 and the bottom cover 200 includingthe inner plate 230, the outer plate 240, and/or the rear plate 250 maybe curved with the constant curvature or a curvature close to theconstant curvature. When cured at a low temperature, the adhesive memberAD may decrease in flexibility and may affect a curved structure inwhich the module cover 200 is curved with the constant curvature or acurvature close to the constant curvature, and power consumption mayincrease. In this embodiment, by minimizing such effects, the modulecover 200 in a flat shape may be curved with the constant curvature or acurvature close to the constant curvature.

Referring to FIGS. 44 to 46 , the display panel 110 may be supported bythe horizontal part 210H of the main frame 210 or may be partially fixedthereto. The horizontal part 210H of the main frame 210 may extendparallel to the rear surface of the display panel 110 to face thedisplay panel 110. The vertical part 210V of the main frame 210 mayextend in a direction intersecting the horizontal part 210H. Thevertical part 210V may cover a lateral surface of the display panel 110.

The inner plate 230 may face the rear surface of the display panel 110.The inner plate 230 may support the rear surface of the display panel110. The display panel 110 may be partially fixed to the inner plate230. The inner plate 230 may have a stepped portion 235 which is pressedand bent. A distance between the flat plate part 231 (see FIG. 35 ) ofthe inner plate 230 and the display panel 110 may be smaller than adistance between the stepped portion 235 of the inner plate 230 and thedisplay panel 110. The horizontal part 210H of the main frame 210 may beinserted between the display panel 110 and the stepped portion 235 ofthe inner plate 230.

The outer plate 240 may face the rear surface of the inner plate 230.The outer plate 240 may be partially fixed to the inner plate 230. Theouter plate 240 may include a flat plate part 240H and a side part 240V.The flat plate part 240H may be a thin and wide metal plate. The sidepart 240V may be bent from the flat plate part 240H. The side part 240Vmay be bent from the flat plate part 240H. The first side part 240V mayinclude a first side part 240V1 and a second side part 240V2. The firstside part 240V1 may be bent and extend from the flat plate part 240H.For example, the first side part 240V1 may be vertically bent from theflat plate part 240H. The second side part 240V2 may be bent and extendfrom the first side part 240V1. The second side part 240V2 may face thefirst side part 240V1. For example, the second side part 240V2 mayextend while being folded from the first side part 240V1. The side part240V may be disposed between the vertical part 210V of the main frame210 and a distal end of the inner plate 230.

Accordingly, when the display panel 110 is curved, slip may occurbetween the display panel 110 and the inner plate 230, and slip mayoccur between the inner plate 230 and the outer plate 240. In addition,slip may occur between the main frame 210 and the inner plate 230.Further, the main frame 210 may move relative to the outer frame 240.

Referring to FIGS. 47 and 48 along with FIG. 39 , the side bracket 220may be coupled to the inner plate 230 in a manner that allows for sliptherebetween. The side bracket 220 may include the flat plate part 221and the rib parts 222 and 222 b. The rib part 222 b may be steppeddownward from the flat plate part 221. A fastening part 221 a may beformed on the flat plate part 221. The fastening part 221 a may bereferred to as a front fastening part 221 a. For example, the fasteningpart 221 a may be a PEM nut. The fastening part 221 a may protrude fromthe flat plate part 221 toward the inner plate 230. The inner plate 230may include coupling tabs 232 a and 232 b. The coupling tabs 232 a and232 b may be formed on the side part 232 of the inner plate 230. Thecoupling tabs 232 a and 232 b may be formed as the side part 232 ispressed or cut and bent. The coupling tabs 232 a and 232 b may includean inclined part 232 a and a horizontal part 232 b. The inclined part232 a may be formed by a step downward from the side part 232 to thehorizontal part 232 b as the side part 232 is pressed or cut and bent.The horizontal part 232 b may have a long hole 232H. For example, thelong hole 232H may be formed by punching the horizontal part 232 b. Alength of the long hole 232H may be greater than an outer diameter ofthe fastening part 221 a. A width of the long hole 232H may be slightlygreater than or substantially equal to the outer diameter of thefastening part 221 a. The main frame 210 may include the vertical part210V and the horizontal part 210H.

The horizontal part 210H may be inserted between the side bracket 220and the inner plate 230. A through-hole 2101 may be formed in thehorizontal part 210H of the main frame 210. The fastening part 221 a ofthe side bracket 220 may be inserted into the through-hole 2101. Forexample, the fastening member 221 a of the side bracket 220 may be a PEMnut, and the PEM nut may be inserted into the through-hole 2101 of thehorizontal part 210H of the main frame 210 and the long hole 232H of thecoupling tabs 232 a and 232 b of the inner frame 230. By the fasteningmember f inserted into the PEM nut 221 a, the coupling tabs 232 a and232 b of the inner plate 230 may be connected to the fastening part 221a of the side bracket 220. For example, the fastening member f may be ascrew.

The flat plate part 240H of the outer plate 240 may face the sidebracket 220, and the side part 240V may be inserted between an edge ofthe side bracket 220 and the vertical part 210V of the main frame 210. Agap may be formed between the edge of the side bracket 220 and thevertical part 210V of the main frame 210. The side part 240V of theouter plate 240 may be disposed in the gap.

Accordingly, as the module cover 200 is curved, slip may occur betweenthe inner plate 230, the side bracket 220, and the outer plate 240,thereby ensuring flexibility in movement of the module cover 200 whilemaintaining structural stability of the module cover 220.

Referring to FIGS. 49 and 50 , the outer plate 240 may be coupled to theside bracket 220 in a manner that allows for slip therebetween. Thesliding mounts 151 and 152 may be fixed to the outer surface of theouter plate 240 by a fastening member SC. The sliding mounts 151 and 152may have a slip hole LH. The slip hole LH may be formed by passingthrough the sliding mounts 151 and 152 in a thickness direction and maybe an elongated long hole.

The outer plate 240 may have a slip hole 242 formed by passing throughthe outer plate 240. The slip hole 242 may be formed by passing throughthe outer plate 240 in a thickness direction. The slip hole 242 may bean elongated long hole. The slip hole 242 of the outer plate 240 may bealigned with the slip hole LH of the sliding mounts 151 and 152. Forexample, a size of the slip hole 242 of the outer plate 240 may begreater than a size of the slip hole LH of the sliding mounts 151 and152.

A fastening part 221 b may be formed in the flat plate part 221 of theside bracket 220. The fastening part 221 b may be referred to as a rearfastening part 221 b. The fastening part 221 b may extend by protrudingin a thickness direction of the side bracket 220. For example, thefastening part 221 b may be a PEM nut. The fastening part 221 b may beinserted into the slip hole 242 of the outer plate 240 and the slip holeLH of the sliding mounts 151 and 152. A length of the slip hole 242 ofthe outer plate 240 may be greater than an outer diameter of thefastening part 221 b, and a width of the slip hole 242 of the outerplate 240 may be slightly greater than or substantially equal to theouter diameter of the fastening part 221 b.

A fastening tip 221 c may be formed at a distal end of the fasteningpart 221 b. A diameter of the fastening tip 221 c may be smaller than adiameter of the fastening part 221 b. A length of the slip hole LH ofthe sliding mounts 151 and 152 may be greater than an outer diameter ofthe fastening tip 221 c, and a width of the slip hole LH may be slightlygreater than or substantially equal to the outer diameter of thefastening tip 221 c. The fastening member f may be inserted into thefastening part 221 b and the fastening tip 221 c. For example, thefastening member f may be a screw. The sliding mounts 151 and 152 andthe side bracket 220 may be coupled to each other by the fasteningmember f.

The main frame 210 may be fixed to the side bracket 220 to move togetherwith the side bracket 220. The inner plate 230 may be coupled or fixedto the main frame 210 by the adhesive member AD, and the display panel110 may be coupled or fixed to the inner plate 230 by the adhesivemember AD.

Accordingly, as the module cover 200 is curved, slip may occur betweenthe inner plate 230, the side bracket 220, and the outer plate 240,thereby ensuring flexibility in movement of the module cover 200 whilemaintaining structural stability of the module cover 220.

Referring to FIG. 51 along with FIG. 42 , the display panel 110 may becoupled to the inner plate 230. The display panel 110 may include anS-PCB. The S-PCB may be connected to the display panel 110 via aflexible electric cable COF. For example, the flexible electric cableCOF may be a chip on film (COF) or a flexible printed circuit board(F-PCB). The S-PCB may be disposed between the display panel 110 and theinner plate 230. The S-PCB may be disposed in the receiving part 234 orthe second receiving part 234 a. The receiving part 234 and/or thesecond receiving part 234 a may be pressed from the inner plate 230toward the outer plate 240, and in order to accommodate the receivingpart 234 and/or the second receiving part 234 a, the side bracket 220may include the support part 223 which is pressed from the inner plate230 toward the outer plate 240. In addition, the outer plate 240 mayinclude a pocket 241 for receiving the support part 223 of the sidebracket 220. The pocket 241 may be formed as the outer plate 240 ispressed.

The magnet 226 may be disposed between the pocket 241 of the outer plate240 and the support part 223 of the side bracket 220. The pocket 241 ofthe outer plate 240 may be coupled to the support part 223 of the sidebracket 220 by the magnet 226.

Accordingly, even when slip occurs between the side bracket 220 and theouter plate 240 while the module cover 200 is curved, the outer plate240 may remain coupled to the side bracket 220, thereby ensuringflexibility in movement of the module cover 200 while maintainingstructural stability of the module cover 200.

Referring to FIG. 52 along with FIG. 2 , as the lead screw 135 isrotated by the torque provided by the motor 137, the flip frame 133moves in a longitudinal direction of the lead screw 135, such that thewing 140 may pivot about the pivot shafts 141P and 142P.

When the wing 140 pivots, the slide bracket 160 moves on the slidingmounts 151 and 152 (see FIG. 26 ) and the guide cover 170 while pushingboth sides of the display panel 110 and the plate 120 to bend thedisplay panel 110.

When the lead screw 135 is reversely rotated, the flip frame 133 movesin a reverse direction of the lead screw 135, such that the wing 140 maypivot about the pivot shafts 141P and 141P in an opposite direction.

When the wing 140 pivots in the opposite direction, the slide bracket160 moves on the sliding mounts 151 and 152 and the guide cover 170while pulling both sides of the display panel 110 and the plate 120 toflatten the display panel 110.

Referring to FIGS. 1 to 52 , a display device includes: a flexibledisplay panel 110; flexible rear covers 120 and 200 disposed at a rearof the display panel 110 and coupled to the display panel 110; a drivingmodule 130 disposed at a rear of the rear covers 120 and 200 andincluding a moving block 134 that makes a reciprocal movement; wingbrackets 131 and 132 fixed to the rear of the rear covers 120 and 200 ata position adjacent to the driving module 130; and a wing 140 elongatedwith a first end fixed to the moving block 134 and a second end coupledto the rear covers 120 and 200, the wing 140 pivotally connected to thewing brackets 131 and 132 at a position between the first end and thesecond end, wherein the rear covers 120 and 200 include: a main frame210 extending along sides of the display panel 110; an inner plate 230facing a rear surface of the display panel 110 and coupled to the mainframe 210; and a side bracket 220 disposed adjacent to one side of thedisplay panel 110 and coupled to the main frame 210.

The display panel 110 may include: a first long side LS1; a second longside LS2 opposite the first long side LS1; a first short side SS1connecting one end of the first long side LS1 with one end of the secondlong side LS2; and a second short side SS2 opposite the first short sideSS1 and connecting another end of the first long side LS1 with anotherend of the second long side LS2, wherein the side bracket 220 may beelongated along the first short side SS1 and may be fixed to the firstlong side LS1, the second long side LS2, and the first short side SS1.

The inner plate 230 may be disposed between the display panel 110 andthe side bracket 220 and may be coupled to the main frame 210.

The rear covers 120 and 200 may further include an outer plate 240disposed opposite the inner plate 230 with respect to the main frame 210and the side bracket 220, wherein the outer plate 240 may be coupled tothe main frame 210.

The rear covers 120 and 200 may further include a rear plate 250disposed between the outer plate 240 and the inner plate 230 and coupledto the outer plate 240 or the inner plate 230, wherein a size of therear plate 250 may be smaller than a size of the outer plate 240.

The outer plate 240 may include: a first long side LS1; a second longside LS2 opposite the first long side LS1; a first short side SS1connecting one end of the first long side LS1 with one end of the secondlong side LS2; and a second short side SS2 opposite the first short sideSS1 and connecting another end of the first long side LS1 with anotherend of the second long side LS2, wherein the rear plate 250 may have alength parallel to the first short side SS1 and the second short sideSS2 and a width W parallel to the first long side LS1 and the secondlong side LS2, wherein the width of the rear plate 250 may be smallerthan a length of the first long side LS1 or the second long side LS2 ofthe outer plate 240.

The inner plate 230 may include: a plurality of holes H1 and H2 passingthrough the inner plate 230, wherein the plurality of holes H1 and H2form a plurality of columns in a left-right direction of the inner plate230 and a plurality of rows in an up-down direction of the inner plate230.

The plurality of holes H1 and H2 may be symmetric to each other withrespect to a center line CL of the inner plate 230 in the up-downdirection of the inner plate 230.

A first distance D1 from the center line CL of the inner plate 230 to anoutermost column on one side of the plurality of holes H1 and H2 may besmaller than a second distance D2 from a side of the inner plate 230 toan outermost column on another side of the plurality of holes H1 and H2.

The inner plate 230 may include: a flat plate part 231 facing a rearsurface of the display panel 110; a side part covering the side bracket220; and a receiving part 234 disposed on one side of the flat platepart 231 and the side part 232 and 233 and forming a step with respectto the flat plate part 231 as the flat plate part 231 is pressed,wherein the plurality of holes H1 and H2 may be formed in the flat platepart 231.

The plurality of holes H1, H2, H3, and H4 may include: the holes H1 andH2 having a circular shape and formed in the flat plate part 231; andthe holes H3 and H4 having an elliptical shape and formed in the stepbetween the flat plate part 231 and the receiving part 234.

The inner plate 230 may further include cable holes SH1 and SH2 formedin the receiving part 234, wherein the cable holes SH1 and SH2 may beprovided in plurality and may be symmetric to each other with respect tothe center line CL of the inner plate 230.

The display device may further include: sliding mounts 151 and 152 fixedto the rear covers 120 and 200; a slide bracket 160 coupled to thesecond end of the wing 140; and a guide cover into which the slidebracket 160 is inserted, guides movement of the slide bracket 160 in alongitudinal direction of the wing 140, and is fixed to the slidingmounts 151 and 152.

The slide bracket 160 may include: a front protrusion 163 protrudingfrom the wing 140 toward the rear covers 120 and 200; and a rearprotrusion 162 protruding from the rear covers 120 and 200 toward thewing 140, wherein the front protrusion 163 or the rear protrusion 162may make point contact with the guide cover 170.

In addition, a display device includes: a flexible display panel 110;bottom covers 120 and 200 disposed at a rear of the display panel 110and coupled to the display panel 110; a driving module 130 disposed at arear of the bottom covers 120 and 200 and including a moving block 134that makes a reciprocal movement; wing brackets 131 and 132 fixed to therear of the bottom covers 120 and 200 at a position adjacent to thedriving module 130; and wings 141 and 142 each elongated with a firstend fixed to the moving block 134 and a second end coupled to the bottomcovers 120 and 200, the wings 141 and 142 pivotally connected to thewing brackets 131 and 132 at a position between the first end and thesecond end, wherein the bottom covers 120 and 200 include: an innerplate 230 coupled to the display panel 110; a flexible main frame 210coupled to sides of the inner plate 230; an outer plate 240 disposedopposite the display panel 110 with respect to the inner plate 230; anda side bracket 220 disposed between the inner plate 230 and the outerplate 240 and coupled to the main frame 210, wherein the main frame 210is fixed to the side bracket 220, and the side bracket 220 is coupled tothe inner plate 230 in a manner that allows slip to occur therebetween.

The main frame 210 may include: a horizontal part 210H disposed betweenthe side bracket 220 and the inner plate 230 and having a through-hole2101; and a vertical part 210V covering a side surface of the outerplate 240 and the inner plate 230 and connected to the horizontal part210H, wherein the side bracket 220 may include a front fastening part221 a extending by protruding toward the display panel 110 and insertedinto the through-hole 2101, and may be fixed to the main frame 210.

The inner plate 230 may include a long hole 232H formed in the innerplate 230 to correspond to the through hole 2101, wherein the frontfastening part 221 a of the side bracket 220 may be inserted into thelong hole 232H of the inner plate 230.

The front fastening part 221 a may be formed in a cylindrical shape,wherein a diameter of the through-hole 2101 may be substantially equalto a diameter of the front fastening part 221 a, a length of the longhole 232H may be greater than the diameter of the front fastening part221 a, and a width of the long hole 232H may be substantially equal tothe diameter of the front fastening part 221 a.

The outer plate 240 may include a slip hole 242 disposed adjacent to theside bracket 220 and formed by passing through the outer plate 240,wherein the main frame 210 may include a horizontal part 210H disposedbetween the side bracket 220 and the inner plate 230, and a verticalpart 210V covering a side surface of the outer plate 240 and the innerplate 230 and connected to the horizontal part 210H, wherein the sidebracket 220 may include a rear fastening part 221 b extending byprotruding toward the outer plate 240 and inserted into the slip hole242.

The display device may further include sliding mounts 151 and 152 towhich the second end of the wings 141 and 142 are slidably coupled,wherein the rear fastening part 221 b of the side bracket 220 may passthrough the slip hole 242 to be fixed to the sliding mounts 151 and 152.

The rear fastening part 221 b may be formed in a cylindrical shape,wherein a length of the slip hole 242 may be greater than a diameter ofthe rear fastening part 221 b, and a width of the slip hole 242 may besubstantially equal to a width of the rear fastening part 221 b.

The sliding mounts 151 and 152 may be fixed to a rear surface of theouter plate 240.

The display device may further include magnets 225 and 226 disposedbetween the side bracket 220 and the outer plate 240 and fixed to theside bracket 220, wherein the outer plate 240 may include metal.

The display panel 110 may be coupled to the inner plate 230 by anadhesive member AD, wherein the inner plate 230 may be coupled to theside bracket 220 by the adhesive member AD.

Certain embodiments or other embodiments of the invention describedabove are not mutually exclusive or distinct from each other. Any or allelements of the embodiments of the invention described above may becombined or combined with each other in configuration or function.

For example, a configuration “A” described in one embodiment of theinvention and the drawings and a configuration “B” described in anotherembodiment of the invention and the drawings may be combined with eachother. Namely, although the combination between the configurations isnot directly described, the combination is possible except in the casewhere it is described that the combination is impossible.

Although embodiments have been described with reference to a number ofillustrative embodiments thereof, it should be understood that numerousother modifications and embodiments can be devised by those skilled inthe art that will fall within the scope of the principles of thisdisclosure. More particularly, various variations and modifications arepossible in the component parts and/or arrangements of the subjectcombination arrangement within the scope of the disclosure, the drawingsand the appended claims. In addition to variations and modifications inthe component parts and/or arrangements, alternative uses will also beapparent to those skilled in the art.

What is claimed is:
 1. A display device comprising: a flexible displaypanel; a flexible rear cover disposed at a rear of the display panel andcoupled to the display panel; a driving module disposed at a rear of therear cover and including a moving block with a reciprocal movement; awing bracket fixed to the rear of the rear cover adjacent to the drivingmodule; and a wing elongated with a first end fixed to the moving blockand a second end coupled to the rear cover, the wing pivotally connectedto the wing bracket between the first end and the second end, whereinthe flexible rear cover comprises: a main frame extending along sides ofthe display panel; an inner plate facing a rear surface of the displaypanel and coupled to the main frame; and a side bracket disposedadjacent to one side of the display panel and coupled to the main frame.2. The display device of claim 1, wherein the display panel comprises: afirst long side; a second long side opposite the first long side; afirst short side connecting one end of the first long side with one endof the second long side; and a second short side opposite the firstshort side and connecting the other end of the first long side with theother end of the second long side, wherein the side bracket is elongatedalong the first short side and is fixed to the first long side, thesecond long side, and the first short side.
 3. The display device ofclaim 2, wherein the inner plate is disposed between the display paneland the side bracket and is coupled to the main frame.
 4. The displaydevice of claim 1, wherein the flexible rear cover further comprises anouter plate disposed opposite the inner plate with respect to the mainframe and the side bracket, wherein the outer plate is coupled to atleast one of the main frame or the side bracket.
 5. The display deviceof claim 4, wherein the flexible rear cover further comprises a rearplate disposed between the outer plate and the inner plate and coupledto the outer plate or the inner plate, wherein a size of the rear plateis smaller than a size of the outer plate.
 6. The display device ofclaim 5, wherein the outer plate comprises: a first long side; a secondlong side opposite the first long side; a first short side connectingone end of the first long side with one end of the second long side; anda second short side opposite the first short side and connecting theother end of the first long side with the other end of the second longside, wherein the rear plate has a length parallel to the first shortside and the second short side and a width parallel to the first longside and the second long side, wherein the width of the rear plate issmaller than a length of the first long side or the second long side ofthe outer plate.
 7. The display device of claim 1, wherein the innerplate comprises: a plurality of holes passing through the inner plate,wherein the plurality of holes forms a plurality of columns in aleft-right direction of the inner plate and a plurality of rows in anup-down direction of the inner plate.
 8. The display device of claim 7,wherein the plurality of holes is symmetric to each other with respectto a center line of the inner plate in the up-down direction of theinner plate.
 9. The display device of claim 8, wherein a first distancefrom the center line of the inner plate to an outermost column on oneside of the plurality of holes is smaller than a second distance from aside of the inner plate to an outermost column on another side of theplurality of holes.
 10. The display device of claim 7, wherein the innerplate comprises: a flat plate part facing a rear surface of the displaypanel; a side part covering the side bracket; and a receiving partdisposed on one side of the flat plate part and the side part andforming a step with respect to the flat plate part as the flat platepart is pressed, wherein the plurality of holes are formed in the flatplate part.
 11. The display device of claim 10, wherein the plurality ofholes comprises: holes having a circular shape and formed in the flatplate part; and holes having an elliptical shape and formed in the stepbetween the flat plate part and the receiving part.
 12. The displaydevice of claim 10, wherein the inner plate further comprises cableholes formed in the receiving part, wherein the cable holes are providedin plurality and are symmetric to each other with respect to the centerline of the inner plate.
 13. The display device of claim 1, furthercomprising: a sliding mount fixed to the rear cover; a slide bracketcoupled to the second end of the wing; and a guide cover into which theslide bracket is inserted, the guide cover guiding movement of the slidebracket in a longitudinal direction of the wing, and the guide coverfixed to the sliding mount.
 14. The display device of claim 13, whereinthe slide bracket comprises: a front protrusion protruding from the wingtoward the rear cover; and a rear protrusion protruding from the rearcover toward the wing, wherein the front protrusion or the rearprotrusion is in point contact with the guide cover.